drawRect is not refreshing the screen
- by coure06
I have this code in my drawRect method
float aValue = .0167f;
float fValue = 20;
for(int i=1; i<=6; i++)
{
CGContextSelectFont(context, "Arial", fValue, kCGEncodingMacRoman);
CGContextSetCharacterSpacing(context, 0);
CGContextSetTextDrawingMode(context, kCGTextFill);
NSString *hString = [[NSString alloc] initWithFormat:@"%i",i];
CGContextSetRGBFillColor(context, 1, 1, 1, aValue);
CGContextShowTextAtPoint(context, i*25, i*16, [hString UTF8String], [hString length]);
aValue += 0.167;
fValue += 1;
}
I am calling a method using NSTimer like this
staticTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(refreshUIView) userInfo:nil repeats:YES];
here is the refreshUIView
-(void)refreshUIView
{
[self setNeedsDisplay];
}
Problem is that drawRect is not clearing the screen, its just over writing what have been written last time on screen.
